CA2716817C - Method and apparatus for processing audio signal - Google Patents
Method and apparatus for processing audio signal Download PDFInfo
- Publication number
- CA2716817C CA2716817C CA2716817A CA2716817A CA2716817C CA 2716817 C CA2716817 C CA 2716817C CA 2716817 A CA2716817 A CA 2716817A CA 2716817 A CA2716817 A CA 2716817A CA 2716817 C CA2716817 C CA 2716817C
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- signal
- audio signal
- coding
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- 230000005236 sound signal Effects 0.000 title claims abstract description 232
- 238000000034 method Methods 0.000 title claims abstract description 65
- 238000012545 processing Methods 0.000 title claims description 19
- 238000007493 shaping process Methods 0.000 claims description 44
- 230000003595 spectral effect Effects 0.000 claims description 19
- 230000001131 transforming effect Effects 0.000 claims description 11
- 239000000284 extract Substances 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000003672 processing method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 description 31
- 238000013139 quantization Methods 0.000 description 25
- 238000010586 diagram Methods 0.000 description 16
- 238000001228 spectrum Methods 0.000 description 16
- 238000012546 transfer Methods 0.000 description 12
- 238000004458 analytical method Methods 0.000 description 10
- 238000004891 communication Methods 0.000 description 9
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 230000000873 masking effect Effects 0.000 description 4
- 230000003044 adaptive effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007781 pre-processing Methods 0.000 description 2
- 230000010076 replication Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000002194 synthesizing effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
- G10L19/16—Vocoder architecture
- G10L19/18—Vocoders using multiple modes
- G10L19/22—Mode decision, i.e. based on audio signal content versus external parameters
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00007—Time or data compression or expansion
- G11B2020/00014—Time or data compression or expansion the compressed signal being an audio signal
Landscapes
- Engineering & Computer Science (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US3303208P | 2008-03-03 | 2008-03-03 | |
US61/033,032 | 2008-03-03 | ||
PCT/KR2009/001050 WO2009110738A2 (ko) | 2008-03-03 | 2009-03-03 | 오디오 신호 처리 방법 및 장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2716817A1 CA2716817A1 (en) | 2009-09-11 |
CA2716817C true CA2716817C (en) | 2014-04-22 |
Family
ID=41056471
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2716817A Active CA2716817C (en) | 2008-03-03 | 2009-03-03 | Method and apparatus for processing audio signal |
Country Status (11)
Country | Link |
---|---|
US (1) | US7991621B2 (ja) |
EP (1) | EP2259253B1 (ja) |
JP (1) | JP5266341B2 (ja) |
KR (1) | KR101221919B1 (ja) |
CN (1) | CN101965612B (ja) |
AU (1) | AU2009220321B2 (ja) |
BR (1) | BRPI0910285B1 (ja) |
CA (1) | CA2716817C (ja) |
MX (1) | MX2010009571A (ja) |
RU (1) | RU2455709C2 (ja) |
WO (1) | WO2009110738A2 (ja) |
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US9343079B2 (en) * | 2007-06-15 | 2016-05-17 | Alon Konchitsky | Receiver intelligibility enhancement system |
KR101380170B1 (ko) * | 2007-08-31 | 2014-04-02 | 삼성전자주식회사 | 미디어 신호 인코딩/디코딩 방법 및 장치 |
EP2259254B1 (en) * | 2008-03-04 | 2014-04-30 | LG Electronics Inc. | Method and apparatus for processing an audio signal |
EP2863390B1 (en) * | 2008-03-05 | 2018-01-31 | Voiceage Corporation | System and method for enhancing a decoded tonal sound signal |
CN101567203B (zh) * | 2008-04-24 | 2013-06-05 | 深圳富泰宏精密工业有限公司 | 自动搜寻及播放音乐的系统及方法 |
AU2009267530A1 (en) * | 2008-07-11 | 2010-01-14 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | An apparatus and a method for generating bandwidth extension output data |
CA2730232C (en) * | 2008-07-11 | 2015-12-01 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | An apparatus and a method for decoding an encoded audio signal |
KR101569702B1 (ko) * | 2009-08-17 | 2015-11-17 | 삼성전자주식회사 | 레지듀얼 신호 인코딩 및 디코딩 방법 및 장치 |
EP2481048B1 (en) * | 2009-09-25 | 2017-10-25 | Nokia Technologies Oy | Audio coding |
JP5754899B2 (ja) | 2009-10-07 | 2015-07-29 | ソニー株式会社 | 復号装置および方法、並びにプログラム |
MX2012004572A (es) | 2009-10-20 | 2012-06-08 | Fraunhofer Ges Forschung | Codificador de audio, decodificador de audio, metodo para codificar informacion de audio, metodo para decodificar informacion de audio y programa de computacion que usa una regla dependiente de la region para un mapeado mediante codificacion aritmetica. |
BR112012017257A2 (pt) | 2010-01-12 | 2017-10-03 | Fraunhofer Ges Zur Foerderung Der Angewandten Ten Forschung E V | "codificador de áudio, codificados de áudio, método de codificação de uma informação de audio método de codificação de uma informação de áudio de programa de computador que utiliza uma modificação de uma representção numérica de um valor de contexto prévio numérico" |
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US9123328B2 (en) * | 2012-09-26 | 2015-09-01 | Google Technology Holdings LLC | Apparatus and method for audio frame loss recovery |
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US9769586B2 (en) | 2013-05-29 | 2017-09-19 | Qualcomm Incorporated | Performing order reduction with respect to higher order ambisonic coefficients |
AU2014283198B2 (en) | 2013-06-21 | 2016-10-20 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus and method realizing a fading of an MDCT spectrum to white noise prior to FDNS application |
EP2830058A1 (en) | 2013-07-22 | 2015-01-28 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Frequency-domain audio coding supporting transform length switching |
CN103413553B (zh) | 2013-08-20 | 2016-03-09 | 腾讯科技(深圳)有限公司 | 音频编码方法、音频解码方法、编码端、解码端和系统 |
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KR102386736B1 (ko) * | 2014-03-03 | 2022-04-14 | 삼성전자주식회사 | 대역폭 확장을 위한 고주파 복호화 방법 및 장치 |
EP2922054A1 (en) | 2014-03-19 | 2015-09-23 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus, method and corresponding computer program for generating an error concealment signal using an adaptive noise estimation |
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-
2009
- 2009-03-03 WO PCT/KR2009/001050 patent/WO2009110738A2/ko active Application Filing
- 2009-03-03 CN CN2009801075430A patent/CN101965612B/zh active Active
- 2009-03-03 BR BRPI0910285-0A patent/BRPI0910285B1/pt active IP Right Grant
- 2009-03-03 KR KR1020107019538A patent/KR101221919B1/ko active IP Right Grant
- 2009-03-03 AU AU2009220321A patent/AU2009220321B2/en active Active
- 2009-03-03 RU RU2010140362/08A patent/RU2455709C2/ru active
- 2009-03-03 MX MX2010009571A patent/MX2010009571A/es active IP Right Grant
- 2009-03-03 CA CA2716817A patent/CA2716817C/en active Active
- 2009-03-03 JP JP2010549570A patent/JP5266341B2/ja active Active
- 2009-03-03 EP EP09716372.9A patent/EP2259253B1/en active Active
- 2009-07-02 US US12/497,375 patent/US7991621B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
BRPI0910285B1 (pt) | 2020-05-12 |
WO2009110738A3 (ko) | 2009-10-29 |
KR20100134576A (ko) | 2010-12-23 |
CN101965612B (zh) | 2012-08-29 |
US7991621B2 (en) | 2011-08-02 |
US20100070284A1 (en) | 2010-03-18 |
EP2259253B1 (en) | 2017-11-15 |
JP2011513788A (ja) | 2011-04-28 |
RU2455709C2 (ru) | 2012-07-10 |
WO2009110738A2 (ko) | 2009-09-11 |
RU2010140362A (ru) | 2012-04-10 |
JP5266341B2 (ja) | 2013-08-21 |
EP2259253A4 (en) | 2013-02-20 |
BRPI0910285A2 (pt) | 2015-09-29 |
EP2259253A2 (en) | 2010-12-08 |
CA2716817A1 (en) | 2009-09-11 |
AU2009220321A1 (en) | 2009-09-11 |
AU2009220321B2 (en) | 2011-09-22 |
KR101221919B1 (ko) | 2013-01-15 |
MX2010009571A (es) | 2011-05-30 |
CN101965612A (zh) | 2011-02-02 |
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